James Cameron's "Avatar" is already generating a lot of buzz at this year's Comic-Con International in San Diego, and the show's barely even begun. In fact, he probably didn't even need to bring the massive mech stationed at the 20th Century Fox booth to get people excited about the film -- but we're glad he did!

According to various reports around the 'Net, the 14-foot tall "powersuit" is an actual prop from the film, worn by human soldiers in Cameron's much-anticipated sci-fi epic.

Check out the full image after the jump, and be sure to keep an eye on MTV Movies Blog, Splash Page, Hollywood Crush and the rest of MTV.com throughout Comic-Con for more news, views and reports from the floor!